Decorator for the PORO

gistfile1.txt

class FooPresenter
  include Draper::Decoratable
  attr_accessor :user

  def initialize(user)
    @user = user
  end

  def name
    user.name
  end

  def price
    123
  end
end

class FooPresenterDecorator < Draper::Decorator
  delegate_all

  def name
    object.name.upcase
  end

  def price
    h.number_to_currency object.price
  end
end

FooPresenter.new(User.first).decorate.price
> "£123.00"